Fixing regression failure introduced in #725.

* fix: add google-auth as a direct dependency

* update constraints

* 🦉 Updates from OwlBot post-processor

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* print prerelease package versions

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* 🦉 Updates from OwlBot post-processor

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* 🦉 Updates from OwlBot post-processor

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---------

Co-authored-by: Lingqing Gan <lingqing.gan@gmail.com>
Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

* fix: add google-auth as a direct dependency

* update constraints

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* print prerelease package versions

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* 🦉 Updates from OwlBot post-processor

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* 🦉 Updates from OwlBot post-processor

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---------

Co-authored-by: Lingqing Gan <lingqing.gan@gmail.com>
Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

…ngeStream (#740)

* feat: add new_partitions field for CloseStream for Cloud Bigtable ChangeStream

PiperOrigin-RevId: 512957844

Source-Link: googleapis/googleapis@c5650ae

Source-Link: googleapis/googleapis-gen@a71ec9c
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiYTcxZWM5Y2MwYTg3MTI4NjU4N2YxZGYxYzVlNDM0YzViYzMzOGY5MSJ9

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Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [PyYAML](https://pyyaml.org/) ([source](https://togithub.com/yaml/pyyaml)) | `==5.4` -> `==5.4.1` | [![age](https://badges.renovateapi.com/packages/pypi/PyYAML/5.4.1/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/pypi/PyYAML/5.4.1/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/pypi/PyYAML/5.4.1/compatibility-slim/5.4)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/pypi/PyYAML/5.4.1/confidence-slim/5.4)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

<details>
<summary>yaml/pyyaml</summary>

### [`v5.4.1`](https://togithub.com/yaml/pyyaml/compare/5.4...5.4.1)

[Compare Source](https://togithub.com/yaml/pyyaml/compare/5.4...5.4.1)

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Source-Link: https://togithub.com/googleapis/synthtool/commit/26c7505b2f76981ec1707b851e1595c8c06e90fc
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-python:latest@sha256:f946c75373c2b0040e8e318c5e85d0cf46bc6e61d0a01f3ef94d8de974ac6790

Also converted assert to a warning in case a lock expires from the cache
before it can be removed.

Fixes #728

reverts previous commit for preventing normalization of versioning

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>

* feat: add support for table snapshots

* Add system test for table snapshots

* Make test taxonomy resource name unique

* Store timezone aware snapshot time on snapshots

* Make copy config tests more detailed

* Use unique resource ID differently for display name

* Add new classes to docs

Supersedes #711.


## [2.21.0](https://www.github.com/googleapis/python-bigquery/compare/v2.20.0...v2.21.0) (2021-07-13)


### Features

* Add max_results parameter to some of the `QueryJob` methods. ([#698](https://www.github.com/googleapis/python-bigquery/issues/698)) ([2a9618f](https://www.github.com/googleapis/python-bigquery/commit/2a9618f4daaa4a014161e1a2f7376844eec9e8da))
* Add support for decimal target types. ([#735](https://www.github.com/googleapis/python-bigquery/issues/735)) ([7d2d3e9](https://www.github.com/googleapis/python-bigquery/commit/7d2d3e906a9eb161911a198fb925ad79de5df934))
* Add support for table snapshots. ([#740](https://www.github.com/googleapis/python-bigquery/issues/740)) ([ba86b2a](https://www.github.com/googleapis/python-bigquery/commit/ba86b2a6300ae5a9f3c803beeb42bda4c522e34c))
* Enable unsetting policy tags on schema fields. ([#703](https://www.github.com/googleapis/python-bigquery/issues/703)) ([18bb443](https://www.github.com/googleapis/python-bigquery/commit/18bb443c7acd0a75dcb57d9aebe38b2d734ff8c7))
* Make it easier to disable best-effort deduplication with streaming inserts. ([#734](https://www.github.com/googleapis/python-bigquery/issues/734)) ([1246da8](https://www.github.com/googleapis/python-bigquery/commit/1246da86b78b03ca1aa2c45ec71649e294cfb2f1))
* Support passing struct data to the DB API. ([#718](https://www.github.com/googleapis/python-bigquery/issues/718)) ([38b3ef9](https://www.github.com/googleapis/python-bigquery/commit/38b3ef96c3dedc139b84f0ff06885141ae7ce78c))


### Bug Fixes

* Inserting non-finite floats with `insert_rows()`. ([#728](https://www.github.com/googleapis/python-bigquery/issues/728)) ([d047419](https://www.github.com/googleapis/python-bigquery/commit/d047419879e807e123296da2eee89a5253050166))
* Use `pandas` function to check for `NaN`. ([#750](https://www.github.com/googleapis/python-bigquery/issues/750)) ([67bc5fb](https://www.github.com/googleapis/python-bigquery/commit/67bc5fbd306be7cdffd216f3791d4024acfa95b3))


### Documentation

* Add docs for all enums in module. ([#745](https://www.github.com/googleapis/python-bigquery/issues/745)) ([145944f](https://www.github.com/googleapis/python-bigquery/commit/145944f24fedc4d739687399a8309f9d51d43dfd))
* Omit mention of Python 2.7 in `CONTRIBUTING.rst`. ([#706](https://www.github.com/googleapis/python-bigquery/issues/706)) ([27d6839](https://www.github.com/googleapis/python-bigquery/commit/27d6839ee8a40909e4199cfa0da8b6b64705b2e9))

🤖 I have created a release \*beep\* \*boop\*
---
## [2.21.0](https://www.github.com/googleapis/python-bigquery/compare/v2.20.0...v2.21.0) (2021-07-14)


### Features

* add always_use_jwt_access ([#714](https://www.github.com/googleapis/python-bigquery/issues/714)) ([92fbd4a](https://www.github.com/googleapis/python-bigquery/commit/92fbd4ade37e0be49dc278080ef73c83eafeea18))
* add max_results parameter to some of the QueryJob methods ([#698](https://www.github.com/googleapis/python-bigquery/issues/698)) ([2a9618f](https://www.github.com/googleapis/python-bigquery/commit/2a9618f4daaa4a014161e1a2f7376844eec9e8da))
* add support for decimal target types ([#735](https://www.github.com/googleapis/python-bigquery/issues/735)) ([7d2d3e9](https://www.github.com/googleapis/python-bigquery/commit/7d2d3e906a9eb161911a198fb925ad79de5df934))
* add support for table snapshots ([#740](https://www.github.com/googleapis/python-bigquery/issues/740)) ([ba86b2a](https://www.github.com/googleapis/python-bigquery/commit/ba86b2a6300ae5a9f3c803beeb42bda4c522e34c))
* enable unsetting policy tags on schema fields ([#703](https://www.github.com/googleapis/python-bigquery/issues/703)) ([18bb443](https://www.github.com/googleapis/python-bigquery/commit/18bb443c7acd0a75dcb57d9aebe38b2d734ff8c7))
* make it easier to disable best-effort deduplication with streaming inserts ([#734](https://www.github.com/googleapis/python-bigquery/issues/734)) ([1246da8](https://www.github.com/googleapis/python-bigquery/commit/1246da86b78b03ca1aa2c45ec71649e294cfb2f1))
* Support passing struct data to the DB API ([#718](https://www.github.com/googleapis/python-bigquery/issues/718)) ([38b3ef9](https://www.github.com/googleapis/python-bigquery/commit/38b3ef96c3dedc139b84f0ff06885141ae7ce78c))


### Bug Fixes

* inserting non-finite floats with insert_rows() ([#728](https://www.github.com/googleapis/python-bigquery/issues/728)) ([d047419](https://www.github.com/googleapis/python-bigquery/commit/d047419879e807e123296da2eee89a5253050166))
* use pandas function to check for NaN ([#750](https://www.github.com/googleapis/python-bigquery/issues/750)) ([67bc5fb](https://www.github.com/googleapis/python-bigquery/commit/67bc5fbd306be7cdffd216f3791d4024acfa95b3))


### Documentation

* add docs for all enums in module ([#745](https://www.github.com/googleapis/python-bigquery/issues/745)) ([145944f](https://www.github.com/googleapis/python-bigquery/commit/145944f24fedc4d739687399a8309f9d51d43dfd))
* omit mention of Python 2.7 in `CONTRIBUTING.rst` ([#706](https://www.github.com/googleapis/python-bigquery/issues/706)) ([27d6839](https://www.github.com/googleapis/python-bigquery/commit/27d6839ee8a40909e4199cfa0da8b6b64705b2e9))
---


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